Evaluation of Installation of UHF Tail Cap Antenna in F-89 Type Aircraft
Abstract
An ultra high frequency tail cap antenna which was fabricated and flush-mounted on the tip of the vertical stabilizer on an F-89C aircraft by Northrop Aircraft, Inc., was flight tested on various UHF frequencies for range, audio quality, and signal strength, both air-to-air and air-to-ground. The tests revealed that, although these are some areas of low signal strength found forward of the nose and beneath the wings of the aircraft, the antenna provides satisfactory communications, both air-to-air and air-to-ground. Components and Systems Laboratory has determined that three microvolts is the lowest acceptable signal strength level input for adequate reception. The radio frequency input signal strength to the antenna was greater than the three microvolts minimum at all times during the flight tests. The maximum range of this antenna was found to be 210 statute miles at 35,000 feet for signal strength readings above three microvolts and under all conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1952
- Accession Number
- ADA075864
Entities
People
- Robert C. Lollar
- William F. Sandusky